High and medium pressure trip trap



Sept.'l1, 1923, 1,467,379 I A. HARRISON HIGH AND MEDIUM PRESSURE TRIPTRAP med June 21; 1920 2 Shets-She'et' '1 Sept. 11, 1923. 1,467,379

, A. ugmmsom HIGH AND MEDIUM PRESSURE TRIP TRAP Y Filed J une 21, 1920 2Sheets-Sheet z Patented Sept. 11, 1923.

saves AllrIOS HARRISON, OF CHICAGO, IL-LI1\TOIS ASSIGNOR TO JAS. 1?.MARSH & COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

HIGH :ANI) MEDIUIXI PRESSURE TRIP TRAP.

Application filed June 21, 1920. .Serial No. 390,570.

To (/17 710m it m 031 concern Be it known that I, Amos HARRISON, acitizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented certain new and use fulImprovements in High and Medium Pressure Trip Traps, of which thefollowing is a description.

My invention belongs to that general class of devices known as traps,and relates particularly to a trap for steam or like systems suitablefor high, medium or low pressure. The invention has among its objectsthe production of a device of the kind described that is simple,convenient, compact, durable, reliable, efficient and satisfactory foruse wherever found applicable. It has particularly as an object theproduction of a trap of the kind described which has a minimum of movingparts and'connecting mechanisms,

which trap will be sensitive and yet reliable in operation. Many otherobjects and advantages of the construction heroin shown and describedwill be obvious to those skilled in the art from the disclosures hereingiven.

-To this end my invention consists in the novel construction,arrangement and combination of parts herein shown and described, andmore particularly pointedout in the claims.

In the drawings, wherein like reference characters indicate like orcorresponding parts,

Figure 1 is a sectional view through one form of my improved trap;

Figure 2 is a sectional view taken substantially on line 22 of Figure 1;

Figure 3 is a sectional view illustrating a portion of the same in amodified construction;

Figure 4 is a sectional view substantially similar to Figure 1illustrating a modified type of the device; and

Figure 5 is a sectional view taken substan tially on line 5-5 of Figure4.

Referring to the drawings, I have provided a casing of suitablematerial, size and shape, the same in the preferred constructionconsisting of a. shell part 1 providedwitha closure 2, the closure beingmaintained in place by screws or bolts 3, or their equivalents for thepurpose. I also provide a gasket or packing ring 4 of suitable materialbetween the two parts of the casing so as to seal the same. The casingis provided with an inlet 5 and an outlet 6, the

same being preferably formed with a battle 7 at the inlet,- which isprovided with ports 9 and 10. In some cases it is desirable to onlyemploy one port, and infthis case the one may be plugged as shown inFigure 1 inwhich the port 10is closed by. a plug 11. Arranged within thecasing is a float 12 of suitable size, shape and material, the samebeing provided with the valve member 14 arranged to seal. the lower endof the discharge tube 15, as will be more fully described hereafter. Ihave illustrated the float 12 provided with a cover or top part 38, thesame having an opening through which the tube 15 -may extend. I havealso shown a port or opening 83 in the side of the float, and aguardmember or part 34 which forms a conduit, the open end of which isadjacent the lower portion of the float. The port orlopening '33 maybethedesired distance from the bottom of the float and more than one maybeprovided if preferred. The purpose of the opening 33 and the part 34will be explained more fully hereafter in the operation of the device.;As shown, the depending tube 15 carries are newable as well as areversible valve seat member 16 which is provided with a passage 17therethrough. The seat 16.is arranged to cooperate with the valve 14which, as shown, is preferably provided with a rim or ridge 18 arrangedto cooperate with the seat. The ridge 18 is rounded in the preferredconstruction. I have shown guiding members 19 on the float, the samebeing secured thereto and constructed to cooperate with the tube 15, andI have shown other guiding mechanism, as will be hereafter described. Ifdesired, the casing part 1 may be provided with a projecting part .20upon which the float may be supported when in the open or dischargeposition shown in Figure 1. Adjustably mounted upon the tube 15 is anarm 22 to which is adjustably secured a rod or' pin 21, the samearranged tocooperate with a .member 23 mounted upon the float. I Whereit is not desired to provide foradjustment of the rod 21, the same maybe obviously mounted on the top part2. I

have shown cooperatingguiding members 24 and 25, and 26 and 27 whichtend to guide the opposite side of the float and prevent the sampivoting about the tube 15.

A pipe or conductor 28 is connected to the inlet 5 and a discharge pipeor conductor 29 may be connected to the inlet 6. I have shown a pet-cockor relief valve 30 and a drain opening which is normally closed by aplug 31. In the construction shown, the closure 2 is formed with thechamber 32 which connects the interior of the tube 5 with the dischargeport 6.

In Figure 3 I have illustrated a substitute for the rod 21. Referring tothisfigure, 35 represents a pin which may be secured to the tube, or asshown, to the valve seat 16, and which is arranged to cooperate with thevalve 14 in a manner to be hereafter described. It preferred, a smallweight 36 may be arranged on the side of the float opposite the valveand guiding mechanism, so as to partially or entirely counterbalancethe'parts at the other side. In the construction shown, I have provideda screw 37 for securing the same in place, it being understood that anyequivalent may be employed for the purpose.

Figures 4 and 5 represent a similar construction, 41 and 42 constitutingthe casing of suitable size, shape and construction, having an inlet andoutlet similar to the casing described. In this case the float 43 ismade of some length, the casing being correspondingly enlarged. Thebottom of the casing is provided with the plug or extending part 44corresponding to part 20 shown in Figure 1, and tube 45, seat 46 andvalve 47 correspond to the other construction. If desired, the float maybe provided with a top 48 which, however, is provided with an opening ofa size to loosely fit the tube 45 so that the float may operate and notbind. The float is shown with a port 49, and a conduit. is formed "fromthe port to adjacent the bot tom of the casing by the guard 50.

The operation of the device maybe briefly described as follows Assumingthat the device is constructed as shown in Figures 1 and 2, and thesameinstalled in a high or low pressure system. Ordinarily there will bewater of condensation in the casing so that the float is raisedsuflicicntly to bring the valve in position to close the-admissionthrough port 17. As water enters the easing. it will partially "fill thesame and when the same reaches the level of the opening 33 in the float,water will begin to flow into the float. It will be noted that, owing tothe member 34, the water entering the float will be drawn from below thelevel outside. con sequently it there is any oil or grease or the likefloating on the top of the water, the same will not enter the float toany extent. When the water reaches the height in the float where theweight of the same overtendency for the float to slightly tip, and atthat time it will be noted that the rod 21 or pin 35, depending uponwhich is used, will act as a fulcrum point so that there will beconsiderable leverage exerted at the valve end, and notwithstanding thatthe same is held firmly in closed position. the same will be easilypried loose. t will be obvious that it is easier to pull the same oil atan angle or by tilting the same than it would be to pull it straightoff, and by virtue of the leverage exerted, the same will pull ofl?easily and quickly. The weight 36 may be of a size which will producethe desired action,'it be ing understood that this may be modified asdesired. lVhere the rod 21 is used, and the same adjustably mounted onan arm as shown, the leverage may be varied by-shifting the position ofthe rod on the arm. Obviously, with the construction in which the pin 35is employed, the leverage will be considerably greater.

With the construction shown in Figure 4, in which. the float iselongated, it will be obvious that a considerably greater leverage maybe obtained than with the construction shown in Figure 1. In otherrespects the construction operates the same. By employing the closedfloat with the port as shown, sand, sediment, dirt and grease are to alarge extent prevented from entering the float, where the same mayinterfere with the most efficient operation of the valve.

Having thus described my invention, it is obvious that variousimmaterial modifications may be made in the. same without departing fromthe spirit of my invention; hence I do not wish to be understood aslimiting myself to the exact form, construction,

arrangement and combination of parts herein shown and described or usesmentioned.

What I claim as new and desire to secure by Letters Patent is:

1. 'In a device of the kind described and in combination, a casingprovided with an float provided with a conduit arranged to conduct thefluid from adjacent the lower portion of the casing into the float at apoint adjacent the top thereof.

2. In a device of the kind described and in combination, a casingprovided with an inlet and outlet, a closed float arranged therein forcontrolling the discharge of fluid through said outlet, means forconducting fluid from the interior of the float to said outlet, saidfloat provided with a conduit arranged to conduct the fluid at theexterior of the float from below the normal level thereof in the casingintothe float, and

means for controlling the operation of the float. I

3. In a device of the kind described and in combination, a casingprovided with an inlet and an outlet, a float arranged therein, a pipeprojecting into the float, a valve member in the float arranged tocooperate with the lower end of said pipe and prevent the passage ofwater from the float through said pipe. when the float is in its raisedposition, and means for conducting water into the float from adjacentthe lower part of the casing.

a. In a device of the kind described and in combination, a casingprovided with an inlet and an outlet, a float arranged therein, a pipeprojecting into the float to adjacent the bottom thereof, a valve membercarried by the float arranged to cooperate with the lower end of saidpipe and prevent the passage of water from the float through said pipewhen the float is in its raised position, and means for conducting waterinto the float from adjacent the lower part of the casing, and means forcontrolling the operation of the float when the water therein reaches apredetermined level.

5. In a device of the kind described and in combination, a casingprovided with an inlet and outlet, a closed float arranged thereinhaving an inlet port adjacent the upper part'thereof and constructedwith a conduit on the exterior extending from said port to adj-acent thelower portion thereof, a discharge pipe extending from said out let inthe casing to the interior of the float adjacent the bottom thereof,said float provided with a valve member arranged to cooperate with saidpipe and prevent the passage of water there through from the float.

6. In a device of the kind described and in combination, a casingprovided with an inlet and outlet, a closed float arranged thereinhaving an inlet port adjacent the upper part thereof and constructedwith a conduit extending from said port to adjacent the lower portionthereof, a discharge pipe extending from said outlet in the casing tothe interior of the float adjacent the bottom thereof, said floatprovided with a disk valve member arranged to cooperate with the lowerend of said pipe and prevent the passage of water therethrough from thefloat.

7. In a device of the kind described and in combination, a casingprovided with an inlet and outlet, a closed float arranged thereinhaving an inlet port adjacent the upper part thereof and constructedwith a conduit extending from said port to adjacent the lower portionthereof, a discharge pipe extending from said outlet in the oasing tothe interior of the float adjacent the bottom thereof, said floatprovided with a valve member arranged to cooperate with said pipe andprevent the passage of water therethrough from the float, and means forcontrolling the movement of the float whereby the valve is opened inapredetermined manner.

8. In a device of the kind described and in combination, a casingprovided with an inlet and outlet, a closed float arranged thereinhaving an inlet port adjacent the determined manner.

9."In a device of the kind described and incombination, a casingprovided with an inlet and outlet, a closed float arranged thereinhaving an inlet port at one side adj acentthe upper part thereof,a-discha'rge pipe extending from said outlet in the easing to theinterior of the float adjacent the bottom thereof at the opposite sideof the tloat,said float'provided with a valve member arranged tocooperate with said pipe and prevent the passage of water therethroughfrom the float, and means for controlling the float upon theaccumulation of fluid.

therein whereby the same will be tilted in a predetermined manner.

10. In a device of the kind described and in combination, a casingprovided'with an inlet and outlet, a closed float arranged thereinhaving an inlet port at one side the upper part thereof and constructedwith a conduiton the exterior from said port adjacent the lower portionthereof, a discharge conduit extending from said outlet in the casing tothe interior of the float adjacent the bottom thereat, said floatprovided with a valve member arranged to cooperate with the end of theconduit and prevent the passage of water therethrough from the floatwhen the valve is closed, and means for controlling the float upon theaccumulation of fluid therein whereby the same will be tilted in apredetermined manner and open the valve.

11. In a device of the kind described and in combination, a casingprovided with an inlet and outlet. a closed float arranged thereinhaving an inlet port adjacent the upper part thereof and constructedwith means for conducting water from the easing to the port, a dischargepipe extending from said outlet into the casing through the top of thefloat to the interior of the float adjacent the bottom thereof, saidfloat provided with a valve member arranged to cooperate with said pipeand control the passage of water therethrough "from the float, and meanscooperating with the float for controlling the movement thereot' wherebywhen the float is partially filled with water the float will be tilted,thereby gradually opening the valve in a predetermined manner.

12. In a device of the kind described and in combination. a casingprovided with an inlet and outlet. a. closed float aranged thereinhaving an inlet port, a discharge pipe extending from said outlet intothe casing: to the interior of the float adjacent the bottom. thereof,said float provided with a valve member arranged to cooperate with saidpipe and control the passage of water therethrougg'h from the float. and.VltlillH-EZIDS tor countcrhalancing the weight of the valve, and means(rowel-a with the float for controlling; the movement thereof wherebywhen the float partially filled with water the float will he til'ed.thereby gradually opening the i alve in prez'letermined manner.

13. In a device of the kind described and in combination, a casino;provided with an inlet and outlet. a closed float arrange-:1 thereinhaving an inlet port adjacent the upper part thereof, a (llSCl12i1ZQconduit extending from said outlet in the casing to the interior of thefloat adjacent the bottom thereof. said float provided with a valvemember arranged to cooperate with conduit and control the passage ofwater there through from the float, and. means for engaging; andcontrolling the movement of the float wherebv when the valve is closedand a predetermined amount of water enters the float, the float will bet lted and said engaging means serve as a fulcrum and atford anincreased leverage on the valve.

14. In a device oi the kind described and in combination. a casingprovided with an inlet and outlet. a closed elongated float argaging andcontrolling the movement of the float whereby when'the valve is closedand a predetermined amount of water enters the float. the float will betilted and said engaging means serve as a fulcrum and afford anincreased leverage on the valve.

15. In a device of the kind described and in combination, a casingprovided with an inlet and outlet, a float arrange-d therein forcontrolling the discharge of fluid through said outlet, means forconducting fluid from I the interior of the float to said outlet, meansarranged to conduct the fluid from below the normal level in the easinginto the float, the float having no other inlet thereinto, and means forcontrolling the operation of the float.

16. In a device of the kind described and in combination, a casingprovided with an inlet and outlet, a float arranged therein forcontrolling: the discharge of fluid through said outlet, means forconducting fluid from tlie intrr or oil the float to said outlet, meansarranged to conduct the fluid from adjacent the lower portion of thecasing into the float at a point adjacent the top thereof, said floathaving no other inlet means thereinto.

In testimony whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

AMOS HARRISON.

lVitnesses Roy W. HILL, BERTHA HAnr ANN.

